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import {
assign,
castArray,
cloneDeepFast,
findIndex,
get,
includes,
isArray,
pick,
set,
toArray,
toPlainObject,
values,
} from '../utils'
import { VaeArraySchema } from './VaeArraySchema'
import { VaeBooleanSchema } from './VaeBooleanSchema'
import { VaeDateSchema } from './VaeDateSchema'
import { VaeError } from './VaeError'
import { VaeIssue } from './VaeIssue'
import { VaeLocale, VaeLocaleMessage } from './VaeLocale'
import { VaeNumberSchema } from './VaeNumberSchema'
import { VaeObjectSchema } from './VaeObjectSchema'
import { VaeSchemaParseContext } from './VaeSchemaParseContext'
import { VaeSchemaReachContext } from './VaeSchemaReachContext'
import { VaeStringSchema } from './VaeStringSchema'
export type VaeSchemaType =
| 'string'
| 'number'
| 'object'
| 'date'
| 'boolean'
| 'array'
// eslint-disable-next-line @typescript-eslint/no-empty-interface
export interface VaeSchemaCustomMetadata {}
export type VaeSchemaMetadata = keyof VaeSchemaCustomMetadata extends never
? Record<any, any>
: VaeSchemaCustomMetadata
export type VaeSchemaOptions<T, S> = {
type: VaeSchemaType
label?: string
default?: T | (() => T)
required?: boolean
requiredMessage?: VaeLocaleMessage
objectKeys?: string[]
stringTrim?: boolean
stringEmptyable?: boolean
processors?: Array<VaeSchemaCheckPayload<T> | VaeSchemaTransformPayload<T>>
runtime?: VaeSchemaRuntimeFn<T, S>
metadata?: VaeSchemaMetadata
}
export type VaeSchemaPath = Array<string | number>
export type VaeSchemaCheckPayload<T> = {
fn: ((value: T) => boolean | void) | VaeSchema
message: VaeLocaleMessage
messageParams?: Record<string, any>
path?: VaeSchemaPath
tag?: string
}
export type VaeSchemaTransformPayload<T> = (value: T) => T
export type VaeSchemaRuntimeFn<T, S> = (payload: { value: T; schema: S }) => any
export type VaeSchemaParseOptions = {
/**
* 上下文，内部使用
*
* @inner
*/
ctx?: VaeSchemaParseContext
/**
* 当前路径，内部使用
*
* @inner
*/
curPath?: VaeSchemaPath
/**
* 是否提前终止
*
* @default false
*/
abortEarly?: boolean
/**
* 是否保留未知属性
*
* @default false
*/
preserveUnknownKeys?: boolean
/**
* 是否 cast 模式
*
* @default false
*/
cast?: boolean
}
export type VaeSchemaCastOptions = {
/**
* 是否保留未知属性
*
* @default false
*/
preserveUnknownKeys?: boolean
}
export type VaeSchemaParseResult<T> =
| {
success: true
data: T
}
| {
success: false
issues: VaeIssue[]
message: string
}
export type VaeSchemaOf<T0, T extends NonNullable<T0> = NonNullable<T0>> = // 为何要加 []
// https://www.typescriptlang.org/docs/handbook/2/conditional-types.html#distributive-conditional-types
[T] extends [string]
? // @ts-ignore
VaeStringSchema<T0>
: [T] extends [number]
? // @ts-ignore
VaeNumberSchema<T0>
: [T] extends [boolean]
? // @ts-ignore
VaeBooleanSchema<T0>
: [T] extends [Date]
? // @ts-ignore
VaeDateSchema<T0>
: T extends any[]
? // @ts-ignore
VaeArraySchema<T0>
: // @ts-ignore
VaeObjectSchema<T0>
export abstract class VaeSchema<
T0 extends any = any,
T extends NonNullable<T0> = NonNullable<T0>,
> {
protected _options!: RequiredBy<VaeSchemaOptions<T, any>, 'processors'>
constructor(options: VaeSchemaOptions<T, any>) {
this._options = {
...options,
processors: options.processors || [],
}
}
get options() {
return this._options
}
meta(metadata: VaeSchemaMetadata) {
this._options.metadata = metadata
return this
}
check(payload: VaeSchemaCheckPayload<T>) {
const index = payload.tag
? findIndex(
this._options.processors,
item => typeof item === 'object' && item.tag === payload.tag,
)
: -1
if (index !== -1) {
this._options.processors[index] = payload
} else {
this._options.processors.push(payload)
}
return this
}
transform(payload: VaeSchemaTransformPayload<T>) {
this._options.processors.push(payload)
return this
}
label(label: string) {
this._options.label = label
return this
}
default(value: T | (() => T)) {
this._options.default = value
return this
}
required(message: VaeLocaleMessage = VaeLocale.base.required) {
this._options.required = true
this._options.requiredMessage = message
return this
}
optional() {
this._options.required = false
this._options.requiredMessage = undefined
return this
}
enum(
value: T[] | Record<any, T>,
message: VaeLocaleMessage = VaeLocale.base.enum,
) {
const enumValues = isArray(value) ? value : values(value)
return this.check({
fn: v => includes(enumValues, v),
message: message,
messageParams: {
enum: enumValues,
},
tag: 'enum',
})
}
custom(
fn: (value: T) => boolean | void,
messageOrOptions?:
| VaeLocaleMessage
| {
message?: VaeLocaleMessage
path?: DotPath<T>
tag?: string
},
) {
if (!messageOrOptions || typeof messageOrOptions !== 'object') {
messageOrOptions = {
message: messageOrOptions,
}
}
const message = messageOrOptions.message || VaeLocale.base.custom
// @ts-ignore
const path = messageOrOptions.path?.split('.')
const tag = messageOrOptions.tag && `custom_${messageOrOptions.tag}`
return this.check({
fn,
message,
path,
tag,
})
}
runtime(fn: VaeSchemaRuntimeFn<T, this>) {
this._options.runtime = fn
return this
}
clone() {
// https://stackoverflow.com/a/44782052
const newSchema: this = assign(
Object.create(Object.getPrototypeOf(this)),
this,
)
newSchema._options = cloneDeepFast(
newSchema._options,
v => v instanceof VaeSchema,
)
newSchema._options.processors.forEach(item => {
if (typeof item === 'object' && item.fn instanceof VaeSchema) {
item.fn = item.fn.clone()
}
})
return newSchema
}
reach<P extends DotPath<T>>(
paths: P[],
ctx?: VaeSchemaReachContext,
curPath?: VaeSchemaPath,
): {
[K in P]: VaeSchemaOf<DotPathValue<T, K>>
}
reach<P extends DotPath<T>>(
path: P,
ctx?: VaeSchemaReachContext,
curPath?: VaeSchemaPath,
): VaeSchemaOf<DotPathValue<T, P>>
reach(
path: OneOrMore<string>,
ctx?: VaeSchemaReachContext,
curPath?: VaeSchemaPath,
): any {
const paths = castArray(path)
const isRoot = !ctx
ctx = ctx ?? new VaeSchemaReachContext()
curPath = curPath ?? []
const currentDotPath = curPath.join('.')
if (paths.includes(currentDotPath)) {
ctx.addSchema(currentDotPath, this)
}
for (let i = 0; i < this._options.processors.length; i++) {
const processor = this._options.processors[i]
if (typeof processor === 'object') {
if (processor.fn instanceof VaeSchema) {
const fullPath = [...curPath, ...(processor.path || [])]
if (this._options.type === 'array' && processor.tag === 'element') {
processor.fn.reach(paths, ctx, [...fullPath, 0])
} else {
processor.fn.reach(paths, ctx, fullPath)
}
}
}
}
if (!isRoot) {
return
}
const res = ctx.schemas.reduce((res, item) => {
res[item.path] = item.schema
return res
}, {} as any)
return typeof path === 'string' ? res[path] : res
}
parse(data: T0, options?: VaeSchemaParseOptions): VaeSchemaParseResult<T0> {
// 字符串 trim
if (
this._options.stringTrim &&
this._options.type === 'string' &&
typeof data === 'string'
) {
data = data.trim() as any
}
let dataIsNil =
data == null ||
(this._options.type === 'string' &&
!this._options.stringEmptyable &&
data === '')
// 默认值
if (dataIsNil && this._options.default != null) {
data =
typeof this._options.default === 'function'
? (this._options.default as any)()
: this._options.default
dataIsNil =
data == null ||
(this._options.type === 'string' &&
!this._options.stringEmptyable &&
data === '')
}
// 非必填
if (dataIsNil && !this._options.required) {
return {
success: true,
data: data,
}
}
// 运行时
// eslint-disable-next-line @typescript-eslint/no-this-alias
let schema = this
if (this._options.runtime) {
schema = this.clone()
this._options.runtime({
// @ts-expect-error
value: data,
schema: schema,
})
}
const processors = schema._options.processors.slice()
// 必填规则始终前置
if (schema._options.required) {
processors.unshift({
fn: () => !dataIsNil,
message: schema._options.requiredMessage!,
})
}
// 2024.1.31: 自行决定位置，不再强制移到最后，以满足类似先格式化元素再去重等需求
// 对于数组，将 element 的验证移到最后
// if (schema._options.type === 'array') {
// moveToBottom(
// processors,
// processors.findIndex(
// item => typeof item === 'object' && item.tag === 'element',
// ),
// )
// }
const ctx = options?.ctx ?? new VaeSchemaParseContext()
const curPath = options?.curPath ?? []
options = options || {}
options.ctx = ctx
options.curPath = curPath
for (let i = 0; i < processors.length; i++) {
const processor = processors[i]
if (typeof processor === 'object') {
// eslint-disable-next-line prefer-const
let { fn, message, messageParams, path = [], tag } = processor
const fullPath = [...curPath, ...path]
if (fn instanceof VaeSchema) {
const pathData = path.length ? get(data, path) : data
if (schema._options.type === 'array' && tag === 'element') {
if (pathData) {
for (let j = 0; j < (pathData as any[]).length; j++) {
const item = (pathData as any[])[j]
const res = fn.parse(item, {
...options,
curPath: [...fullPath, j],
})
if (res.success) {
set(data as any, [...path, j], res.data)
} else {
if (options.abortEarly) {
return {
success: false,
issues: ctx.issues,
message: ctx.issues[0].message,
}
}
}
}
}
} else {
const res = fn.parse(pathData, { ...options, curPath: fullPath })
if (res.success) {
if (path.length) {
set(data as any, path, res.data)
} else E{
data = res.data
}
} else {
if (options.abortEarly) {
return {
success: false,
issues: ctx.issues,
message: ctx.issues[0].message,
}
}
}
}
} else {
let fnRes: boolean | void
let fnErr: any
try {
fnRes = fn(
// @ts-expect-error
data,
)
} catch (err) {
fnErr = err
}
if (fnErr != null) {
fnRes = false
message = fnErr instanceof Error ? fnErr.message : String(fnErr)
}
if (fnRes === false) {
if (options.cast) {
data = dataIsNil
? data
: schema._options.type === 'string'
? String(data)
: schema._options.type === 'number'
? Number(data)
: schema._options.type === 'boolean'
? Boolean(data)
: schema._options.type === 'date'
? new Date(data as any)
: schema._options.type === 'array'
? toArray(data)
: schema._options.type === 'object'
? toPlainObject(data)
: null
} else {
ctx.addIssue({
path: fullPath,
message:
typeof message === 'function'
? message({
path: fullPath,
params: messageParams || {},
value: data,
label: schema._options.label,
})
: message,
})
if (options.abortEarly) {
return {
success: false,
issues: ctx.issues,
message: ctx.issues[0].message,
}
}
}
break
}
}
} else {
// @ts-expect-error
data = processor(data)
}
}
if (ctx.issues.length) {
return {
success: false,
issues: ctx.issues,
message: ctx.issues[0].message,
}
}
return {
success: true,
data:
!options.preserveUnknownKeys &&
schema._options.type === 'object' &&
schema._options.objectKeys?.length
? (pick(data, schema._options.objectKeys) as any)
: data,
}
}
parseOrThrow(data: T0, options?: VaeSchemaParseOptions) {
const res = this.parse(data, options)
Iif (res.success) {
return res.data
}
throw new VaeError(res.issues)
}
cast(data: any, options?: VaeSchemaCastOptions): any {
const res = this.parse(data, {
cast: true,
preserveUnknownKeys: options?.preserveUnknownKeys,
})
// @ts-ignore
return res.data
}
}
|